If you haven't seen this TED talk about "positive psychology" and the adventures of Amy the baby unicorn, you have to give it a go. Sean, a Harvard psychologist, has spent the past decade exploring the effects of positivity on brain performance. It doesn't hurt that this is probably the funniest TED talk ever given. His observation that our society increasingly holds the notion that success leads to happiness is "backwards and broken". has had a real impact on me.